Heat dissipation unit connection structure

ABSTRACT

A heat dissipation unit connection structure includes a substrate and multiple heat dissipation units. The substrate has a first face and a second face. Each heat dissipation unit has a first section and a second section. One end of the first section is connected with the second face of the substrate. The first section has an internal space. The second section extends from the other end of the first section. The second sections of each two adjacent heat dissipation units abut against and connect with each other. The heat dissipation unit connection structure improves the shortcoming of the conventional heat dissipation unit connection structure that the structure is too complicated and it is impossible to rework on the heat dissipation unit connection structure.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates generally to a heat dissipation unitconnection structure, and more particularly to a heat dissipation unitconnection structure, which can quickly connect the heat dissipationunits and save the connection cost.

2. Description of the Related Art

Please refer to FIG. 1. In the heat dissipation field, the conventionalroll-bond plate evaporator 5 has been widely applied to the radiatingfin or the product employing two-phase heat exchange to dissipate theheat. The roll-bond plate evaporator 5 has two faces. One of the twofaces of some roll-bond plate evaporator 5 is formed with blown andraised pipelines. A cooling medium, which can be a gas or a liquid, isfilled in the pipelines to enhance the heat dissipation performance.

The conventional inserted roll-bond plate evaporators 5 can beclassified into two types of structures. One is single-face roll-bondplate evaporator and the other is double-face roll-bond plateevaporator. The single-face roll-bond plate evaporator has a plane faceand another face formed with the blown and raised pipelines. Thedouble-face roll-bond plate evaporator has two faces both of which areformed with the blown and raised pipelines. The above two types ofroll-bond plate evaporators 5 are both two-piece units assembled bymeans of adhesion or welding. A chamber is defined between the two unitsand a working gas is filled in the chamber. The roll-bond plateevaporator 5 has a free end 51 and a fixed end 52. The free end 51 hasmultiple locating bosses 511.

The fixed end of the roll-bond plate evaporator 5 is fixed in a channel61 formed on a substrate 6. The substrate 6 is in contact with a heatsource to conduct the heat thereof. The free end of the roll-bond plateevaporator 5 is connected with a plate body 7. The plate body 7 isformed with multiple perforations 71 in a position corresponding to thelocating bosses 511 of the free ends 51 of the roll-bond plateevaporators 5. The locating bosses 511 are inserted in the perforations71 and then fixed by means of welding or the like. The plate body 7serves to provide dustproof effect and secure the roll-bond plateevaporators 5 to prevent the roll-bond plate evaporators 5 from beingflexed and deformed. The connection method for assembling the plate body7 with the conventional roll-bond plate evaporators 5 is relativelycomplicated. It is necessary to precisely align the roll-bond plateevaporators 5 with the plate body 7 and then weld the roll-bond plateevaporators 5 with the plate body 7. Such process is time-costing andthe difficulty in working is increased. Moreover, once assembled, it isimpossible or very hard to rework on the plate body 7. Furthermore, thesecuring structure of the conventional roll-bond plate evaporators 5 istoo complicated so that the manufacturing cost is relatively high.

It is therefore tried by the applicant to provide a heat dissipationunit connection structure to improve the shortcomings of theconventional heat dissipation unit connection structure that it iscomplicated to secure the roll-bond plate evaporators 5 and it isimpossible to rework on the roll-bond plate evaporators 5.

SUMMARY OF THE INVENTION

It is therefore a primary object of the present invention to provide aheat dissipation unit connection structure, which can easily secure theheat dissipation units and achieve dustproof effect.

To achieve the above and other objects, the heat dissipation unitconnection structure of the present invention includes a substrate andmultiple heat dissipation units.

The substrate has a first face and a second face. Each heat dissipationunit has a first section and a second section. One end of the firstsection is connected with the second face of the substrate. The firstsection has an internal space. The second section extends from the otherend of the first section. The second sections of each two adjacent heatdissipation units abut against and connect with each other.

The heat dissipation unit connection structure improves the shortcomingof the conventional heat dissipation unit connection structure that itis necessary to additionally connect a plate body with the free ends ofthe heat dissipation units so that the connection structure and processare complicated. Therefore, the heat dissipation unit connectionstructure is simplified and the working time is shortened. Also, themanufacturing cost is lowered.

BRIEF DESCRIPTION OF THE DRAWINGS

The structure and the technical means adopted by the present inventionto achieve the above and other objects can be best understood byreferring to the following detailed description of the preferredembodiments and the accompanying drawings, wherein:

FIG. 1 is a perspective view of a conventional roll-bond plateevaporator structure;

FIG. 2a is a perspective view of the heat dissipation unit of a firstembodiment of the heat dissipation unit connection structure of thepresent invention;

FIG. 2b is a perspective sectional view of the heat dissipation unit ofthe first embodiment of the heat dissipation unit connection structureof the present invention;

FIG. 3 is a perspective assembled view of the first embodiment of theheat dissipation unit connection structure of the present invention;

FIG. 4 is a perspective assembled view of a second embodiment of theheat dissipation unit connection structure of the present invention;

FIG. 5a is a perspective exploded view of a third embodiment of the heatdissipation unit connection structure of the present invention;

FIG. 5b is a perspective exploded view of the third embodiment of theheat dissipation unit connection structure of the present invention;

FIG. 6 is a perspective assembled view of a fourth embodiment of theheat dissipation unit connection structure of the present invention;

FIG. 7 is a perspective assembled view of a fifth embodiment of the heatdissipation unit connection structure of the present invention;

FIG. 8 is a perspective assembled view of the heat dissipation unitconnection structure of the present invention;

FIG. 9 is a perspective assembled view of the heat dissipation unitconnection structure of the present invention; and

FIG. 10 is a perspective assembled view of a sixth embodiment of theheat dissipation unit connection structure of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Please refer to FIGS. 2a, 2b and 3. FIG. 2a is a perspective view of theheat dissipation unit of a first embodiment of the heat dissipation unitconnection structure of the present invention. FIG. 2b is a perspectivesectional view of the heat dissipation unit of the first embodiment ofthe heat dissipation unit connection structure of the present invention.FIG. 3 is a perspective assembled view of the first embodiment of theheat dissipation unit connection structure of the present invention.According to the first embodiment, the heat dissipation unit connectionstructure of the present invention includes a substrate 1 and multipleheat dissipation units 2.

The substrate 1 has a first face 11 and a second face 12. The first andsecond faces 11, 12 are respectively positioned on an upper side and alower side of the substrate 1. The first face 11 is in contact with atleast one heat source (not shown) to conduct the heat of the heatsource. The second face 12 is formed with multiple channels 121.

The heat dissipation units 2 are made of a material selected from agroup consisting of gold, silver, copper, aluminum, commercial puretitanium, titanium alloy, stainless steel, ceramic material, ceramicaluminum-based complex material and any combination thereof. Each heatdissipation unit 2 has a first section 21 and a second section 22. Thefirst section 21 has an internal space 211, which is an airtight chamberor flow passage. In this embodiment, the space 211 is, but not limitedto, an airtight chamber 211 for illustration purposes. A working fluid 3is filled in the airtight chamber 211. The working fluid 3 can be a gasor a liquid. The first section 21 is a section for two-phase (vaporphase and liquid phase) heat exchange. Various working fluids 3 can befilled in the airtight chamber 211 to achieve vapor-liquid circulationheat exchange effect. Alternatively, the internal space 211 of the firstsection 21 can be a flow passage. A roughened structure or a capillarystructure can be selectively disposed in the flow passage to enhance thebackflow effect of the working fluid 3.

One end of the first section 21 is connected with and inserted in thechannel 121 of the second face 12 of the substrate 1. The end of thefirst section 21 that is connected with the channel 121 is an engagementend 212. The channel 121 has an engagement notch 1211 corresponding tothe engagement end 212. The engagement end 212 is correspondinglyengaged with the engagement notch 1211. The first section 21 of the heatdissipation unit 2 is securely connected with the channel 121 of thesubstrate 1 by means of press fit, welding, adhesion, insertion orengagement. Alternatively, the engagement end 212 and the engagementnotch 1211 can be a dovetailed tenon and a cooperative dovetailedmortise, which are assembled with each other (not shown).

The second section 22 extends from the other end of the first section21. The second sections 22 of each two adjacent heat dissipation units 2abut against and connect/assemble with each other. The first and secondsections 21, 22 are normal to each other. The second section 22 has atleast one vent 223. The second sections 22 not only serve to providedustproof effect, but also serve to enlarge the total heat dissipationarea of the heat dissipation units 2. The second section 22 has a firstend 221 and a second end 222. The second end 222 is positioned at ajunction between the first and second sections 21, 22. The first end 221is a free end of the second section 22. The first and second ends 221,222 of the second sections 22 of each two adjacent heat dissipationunits 2 abut against and connect/assemble with each other, whereby thesecond sections 22 normal to the first sections 21 can enhance thestructural strength and provide dustproof effect. In addition, thesecond sections 22 of each two adjacent heat dissipation units 2 can befurther securely connected with each other by means of engagement,latching, welding, adhesion or hooping to increase the connectionstrength.

Please refer to FIG. 4, which is a perspective assembled view of asecond embodiment of the heat dissipation unit connection structure ofthe present invention. The second embodiment is partially identical tothe first embodiment in structure and thus will not be redundantlydescribed hereinafter. The second embodiment is different from the firstembodiment in that the second end 222 of the second section 22 of theheat dissipation unit 2 has a groove 2221. The first end 221 of thesecond section 22 of the heat dissipation unit 2 abuts against andconnects with the groove 2221 of the second end 222 of the secondsection 22 of the adjacent heat dissipation unit 2, whereby the secondsections 22 of the two adjacent heat dissipation units 2 are connectedwith each other and flush with each other.

Please refer to FIGS. 5a and 5b . FIG. 5a is a perspective exploded viewof a third embodiment of the heat dissipation unit connection structureof the present invention. FIG. 5b is a perspective exploded view of thethird embodiment of the heat dissipation unit connection structure ofthe present invention. The third embodiment is partially identical tothe first and second embodiments in structure and thus will not beredundantly described hereinafter. The third embodiment is differentfrom the first embodiment in that the third embodiment further includesa holding unit 4. The holding unit 4 has a first holding arm 41 and asecond holding arm 42 and a connection arm 43. Two ends of theconnection arm 43 are connected with the first and second holding arms41, 42 to together define a holding space 44. The first and secondholding arms 41, 42 of the holding unit 4 serve to tightly hold thefirst and last heat dissipation units 2 of the arranged heat dissipationunits 2, which abut against and connect with each other as disclosed inthe first and second embodiments. Accordingly, the heat dissipationunits 2 are received in the holding space 44 to enhance the securingeffect.

In the following embodiments, the second sections 22 of each twoadjacent heat dissipation units 2 are formed with connection structures,which are connected with each other by means of engagement or latchingto securely connect the adjacent heat dissipation units 2 with eachother.

Please refer to FIG. 6, which is a perspective assembled view of afourth embodiment of the heat dissipation unit connection structure ofthe present invention. The fourth embodiment is partially identical tothe first embodiment in structure and thus will not be redundantlydescribed hereinafter. The fourth embodiment is different from the firstembodiment in that the fourth embodiment has a structure with latchingor engagement effect. That is, the first end 221 of the second section22 has a latch section 2211, while the second end 222 has a latchedsection 2221. The latch section 2211 of the first end 221 of the heatdissipation unit 2 is latched with the latched section 2221 of thesecond end 222 of the adjacent heat dissipation unit 2, whereby thesecond sections 22 of the two adjacent heat dissipation units 2 areengaged with each other.

Please refer to FIG. 7, which is a perspective assembled view of a fifthembodiment of the heat dissipation unit connection structure of thepresent invention. The fifth embodiment is partially identical to thefourth embodiment in structure and thus will not be redundantlydescribed hereinafter. The fifth embodiment is different from the thirdembodiment in that in the fifth embodiment, the latch section 2211 is aT-shaped tenon, while the latched section 2221 is a T-shaped mortisecorresponding to the T-shaped tenon. Such structure is similar to thatof the fourth embodiment in which the free end 2211 a has a width largerthan the width of the connection end 2211 b and the closed side 2221 bhas a width larger than the width of the open side 2221 a. Suchstructure can achieve an engagement and latching effect.

The latch section 2211 and the latched section 2221 have some otheraspects (as shown in FIGS. 8 and 9). The first section 21 of anotheradjacent heat dissipation unit 2 is formed with a structure having aconfiguration identical to that of the last heat dissipation unit 2 forcorrespondingly latching therewith (as shown in FIG. 8). Alternatively,two sides of the second section 22 are formed with a hooking structurehaving a hooking end 227 for hooking and latching with the first section21 of another adjacent heat dissipation unit 2 (as shown in FIG. 9). Thelatching structures as shown in the drawings are only for illustration.Many modifications of the above embodiments can be made withoutdeparting from the spirit of the present invention and should beincluded in the protection scope of the present invention.

Please refer to FIG. 10, which is a perspective assembled view of asixth embodiment of the heat dissipation unit connection structure ofthe present invention. The sixth embodiment is partially identical tothe first embodiment in structure and thus will not be redundantlydescribed hereinafter. The sixth embodiment is different from the firstembodiment in that the sixth embodiment further has at least oneextension arm 23 perpendicularly extending from one side of the firstsection 21 of the heat dissipation unit 2. The extension arm 23 islatched with the first section 21 of another adjacent heat dissipationunit 2. The extension arm 23 can perpendicularly extend from one side ofthe first section 21 or perpendicularly extend from both sides of thefirst section 21.

According to the above arrangement, the second sections 22perpendicularly extending from the first sections 21 can enhance thestructural strength of the free ends of the heat dissipation units 2 andprovide dustproof effect. Moreover, the second sections 22 areadditionally formed with the latch sections 2211 and the latchedsections 2221, which are latched with each other. Therefore, the secondsections 22 of the two adjacent heat dissipation units 2 can beconnected without welding or adhesion or any other means. Accordingly,the working time and the manufacturing cost for the welding or adhesioncan be saved.

The present invention has been described with the above embodimentsthereof and it is understood that many changes and modifications in suchas the form or layout pattern or practicing step of the aboveembodiments can be carried out without departing from the scope and thespirit of the invention that is intended to be limited only by theappended claims.

What is claimed is:
 1. A heat dissipation unit connection structurecomprising: a substrate having a first face and a second face; andmultiple heat dissipation units, each heat dissipation unit having afirst section and a second section, one end of the first section beingconnected with the second face of the substrate, the first sectionhaving to an internal space, the second section extending from the otherend of the first section, the second sections of each two adjacent heatdissipation units abutting against and connecting with each other. 2.The heat dissipation unit connection structure as claimed in claim 1,wherein the second section has a first end and a second end, the secondend of the second section of the heat dissipation unit having a groove,the first end of the second section of the heat dissipation unitabutting against and connecting with the groove of the second end of thesecond section of another adjacent heat dissipation unit, whereby thesecond sections of the two adjacent heat dissipation units are connectedwith each other and flush with each other.
 3. The heat dissipation unitconnection structure as claimed in claim 1, wherein the first and secondsections are normal to each other and the second section has at leastone vent.
 4. The heat dissipation unit connection structure as claimedin claim 1, wherein the second section has a first end and a second end,the first end having a latch section, while the second end having alatched section, the latch section of the first end of the heatdissipation unit being latched with the latched section of the secondend of another adjacent heat dissipation unit, whereby the secondsections of the two adjacent heat dissipation units are engaged witheach other.
 5. The heat dissipation unit connection structure as claimedin claim 1, wherein the first section of the heat dissipation unit hasan internal airtight chamber, a working fluid being filled in theairtight chamber, the working fluid being a gas or a liquid.
 6. The heatdissipation unit connection structure as claimed in claim 2, furthercomprising a holding unit fitted on the heat dissipation units, theholding unit having a first holding arm and a second holding arm and aconnection arm, two ends of the connection arm being connected with thefirst and second holding arms to together define a holding space.
 7. Theheat dissipation unit connection structure as claimed in claim 1,wherein the heat dissipation units are made of a material selected froma group consisting of gold, silver, copper, aluminum, commercial puretitanium, titanium alloy, stainless steel, ceramic material, ceramicaluminum-based complex material and any combination thereof.
 8. The heatdissipation unit connection structure as claimed in claim 1, wherein thesecond section has a first end and a second end, the first end having alatch section, while the second end having a latched section, the latchsection and the latched section being a male connector and a femaleconnector corresponding to the male connector, the latch section havinga free end and a connection end, a width of the free end being largerthan a width of the connection end, the latched section having an openside and a closed side, a width of the closed side being larger than awidth of the open side.
 9. The heat dissipation unit connectionstructure as claimed in claim 8, wherein the latch section and thelatched section have a configuration selected from a group consisting ofΩ-shaped configuration and reverse T-shaped configuration.
 10. The heatdissipation unit connection structure as claimed in claim 1, wherein thesecond face of the substrate is formed with multiple channels, an end ofthe first section being inserted in and connected with the channel, theend of the first section that is inserted in and connected with thechannel being an engagement end, the channel having an engagement notchcorresponding to the engagement end, the engagement end beingcorrespondingly engaged with the engagement notch.
 11. The heatdissipation unit connection structure as claimed in claim 1, wherein thesecond face of the substrate is formed with multiple channels, an end ofthe first section being inserted in and connected with the channel, theend of the first section that is inserted in and connected with thechannel being an engagement end, the channel having an engagement notchcorresponding to the engagement end, the engagement end and theengagement notch being a dovetailed tenon and a cooperative dovetailedmortise, which are assembled with each other.
 12. The heat dissipationunit connection structure as claimed in claim 1, wherein at least oneextension arm perpendicularly extends from one side of the first sectionof the heat dissipation unit, the extension arm being latched with thefirst section of another adjacent heat dissipation unit.
 13. The heatdissipation unit connection structure as claimed in claim 1, wherein theinternal space is an airtight chamber or a flow passage.